Dual Display Timer and Its Control Method

Abstract

A dual display timer, comprising a main body, a control circuit board and a reminder device; the reminder device and the control circuit board are arranged in the main body and electrically connected; the timer also comprises: a first display area and a second display area; the first and second display areas are disposed on front face of the main body, the first display area comprises an encoder, a plurality of first lamp beads and a first bezel, the second display area comprises a plurality of second lamp beads and a second bezel. Users turn around the rotary axis of the encoder of the first display area, the first lamp beads light up one by one during the turning process, and then dark out one by one as the time runs out, the second lamp beads of the second display area synchronously display the current used time of timing setup.

1 . A dual display timer, comprising: a main body and in which there are a control circuit board and a reminder device; the reminder device and the control circuit board are electrically connected, characterized in that, further comprising:
 a first display area, the first display area is disposed on front face of the main body, and the first display area further comprises an encoder, a plurality of first lamp beads and a first bezel; the encoder is disposed on the control circuit board; a plurality of the first lamp beads are arranged to circling the encoder on the control circuit board; the first bezel has a plurality of through-holes arranged in a circling way, and the first bezel is disposed on the control circuit board and makes every the first lamp bead emit light outward through corresponding the through-hole;   a second display area, the second display area is disposed on front face of the main body, the second display area comprises a plurality of second lamp beads and a second bezel; a plurality of the second lamp beads is arranged on the control circuit board in the style of digital tubes; on the second display area there are a plurality of slots corresponding to the second lamp beads one by one; the second bezel is disposed on the control circuit board and makes every second lamp bead emit light outward through corresponding the slots to display digitals.   
     
     
         2 . The dual display timer of  claim 1 , wherein the first bezel and the second bezel are integrally connected as a whole piece. 
     
     
         3 . The dual display timer of  claim 1 , wherein the front end of the main body is disposed with a transparent cover plate, and the transparent cover plate covers the first display area and second display area; the encoder's rotary axis sticks out through the first bezel and the transparent cover plate. 
     
     
         4 . The dual display timer of  claim 1 , wherein the main body contains a battery, and the battery connects to the control circuit board. 
     
     
         5 . The dual display timer of  claim 4 , wherein the control circuit board is disposed with a main control circuit, a power supply circuit, an encoder circuit, a reminder circuit, a driver circuit and a display circuit; the power supply circuit, the encoder circuit, the reminder circuit, the driver circuit and the display circuit are all connected to the main control circuit; the reminder circuit, the driver circuit and the display circuit are all connected to the power supply circuit; the display circuit is connected to the driver circuit. 
     
     
         6 . The dual display timer of  claim 5 , wherein the main control circuit comprises a main control chip, the power supply circuit comprises the battery, and the twenty-third pin of the main control chip is connected to the battery. 
     
     
         7 . The dual display timer of  claim 6 , wherein the reminder circuit comprises the reminder device and a reminder switch, the positive pole of the reminder device is connected to the battery, the negative pole of the reminder device is connected to the collector of the reminder switch, and the base pole of the reminder switch is connected to the third pin of the main control chip. 
     
     
         8 . A control method of dual display timer applied to the dual display timer stated in  claim 1 , comprising the following steps:
 Step S 1 : the control circuit board obtains the rotation control data of the encoder, and generates the current timing setup based on the rotation control data;   Step S 2 : the control circuit board generates a first control instruction and a second control instruction based on the current timing setup;   Step S 3 : the control circuit board sends the first control instruction to the first lamp bead, and controls each the first lamp bead to display the current timing setup based on the first control instruction, then synchronously displays the remaining time of timing setup in the process of counting down to zero from the current timing setup;   Step S 4 : the control circuit board sends the second control instruction to each the second lamp bead, and controls each the second lamp bead to display zero based on the second control instruction, then synchronously displays the accumulated time of timing setup in the process of counting up to the current timing setup from zero.   
     
     
         9 . The control method of dual display timer of  claim 8 , further comprising:
 Step S 5 : the reminder device is turned on when the current timing setup runs out.   
     
     
         10 . The control method of dual display timer of  claim 9 , further comprising:
 Step S 6 : the control circuit board obtains a reset command that triggers the encoder;   Step S 7 : the control circuit board sends a reset command to the first lamp beads and the second lamp beads, and controls all the first lamp beads to turn off based on the reset command, while controlling each the second lamp bead to display zero based on the reset command.